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Originally Posted by Kymmy
Which at that freq is going to attenuate through buildings really fast.. even at 300w.
Lets see you transmit a few miles through a built up area compared to how far you'd get on a sub 30Mhz signal with a standard antenna. With a few milliwatts people have transmitted over thousands of miles (current QRP record is 1650 miles @ 30Mhz on 1microwatt)
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It's already transmitting a few miles through a built up area, like I stated above. Sure, you can get further with lower frequencies but powerline networks aren't connected to rooftop antennas deliberately designed to spread the signal as far as possible, they're hooked up to underground cables deliberately designed to
not spread EMI.
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That's the crux here, ofcom don't care about single cases or signals that don't effect many users. Where as a PLT can effect many users with a cumulative effect in inner city areas where lots of these devices can be in one area
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It's affected enough for at least three different companies to complain
